There is a lot to Biggs and Wildy’s backstory that has been left unsaid. And truth be told, some of it may never get said. It’s the strange thing with some characters…as a creator you end up making an entire backlog of their history and motivations and thoughts down to inane details of “how do they handle grocery shopping” to the point you can answer with confidence questions cause it’s easy to know them via their mindsets….but a lot of time that stuff may never actually get to the comic itself. It’s just there…in case you need it.
Btw Wildy impulse buys whatever looks good or is on sale where as Biggs likes to make a grocery list that is insanely detailed because he just has someone go out and pick up the groceries for him.